<script >
import {defineComponent} from "vue"
import '@wangeditor/editor/dist/css/style.css'
import { onBeforeUnmount, ref, shallowRef, onMounted } from 'vue'
import { Editor, Toolbar } from '@wangeditor/editor-for-vue'
export default defineComponent({
  components: {Editor, Toolbar},
  props:{
    valueContent:String,
    changeName:String,
    changeValue:Function
  },
  setup(props){
    const valueHtml = ref('')
// 编辑器实例，必须用 shallowRef，重要！
    const editorRef = shallowRef()
    valueHtml.value = props.valueContent
// 内容 HTML

    const toolbarConfig = {}
    const editorConfig = { placeholder: '请输入内容...' }

// 组件销毁时，也及时销毁编辑器，重要！
    onBeforeUnmount(() => {
      const editor = editorRef.value
      if (editor == null) return
      valueHtml.value = ""
      editor.destroy()
    })

// 编辑器回调函数
    const handleCreated = (editor) => {
      console.log('created', editor);
      editorRef.value = editor // 记录 editor 实例，重要！
    }
    const handleChange = (editor) => {
      props.changeValue(props.changeName,editor.getHtml())
    }
    const handleDestroyed = (editor) => {
      console.log('destroyed', editor)
    }
    const handleFocus = (editor) => {
      // console.log('focus', editor)
    }
    const handleBlur = (editor) => {
      // console.log('blur', editor)
    }
    const customAlert = (info, type) => {
      alert(`【自定义提示】${type} - ${info}`)
    }
    const customPaste = (editor, event, callback) => {
      console.log('ClipboardEvent 粘贴事件对象', event)

      // 自定义插入内容
      editor.insertText('xxx')

      // 返回值（注意，vue 事件的返回值，不能用 return）
      callback(false) // 返回 false ，阻止默认粘贴行为
      // callback(true) // 返回 true ，继续默认的粘贴行为
    }

    const insertText = () => {
      const editor = editorRef.value
      if (editor == null) return
      editor.insertText('hello world')
    }

    return {
      editorRef,
      valueHtml,
      mode: 'default',
      toolbarConfig,
      editorConfig,
      handleCreated,
      handleChange,
      handleDestroyed,
      handleFocus,
      handleBlur,
      customAlert,
      customPaste,
      insertText,
      valueContent:props.valueContent
    };
  }
})
</script>
<template>
  <div>
    <div style="border: 1px solid #ccc; margin-top: 10px;">
      <Toolbar
          :editor="editorRef"
          :defaultConfig="toolbarConfig"
          style="border-bottom: 1px solid #ccc"
      />
      <Editor
          :defaultConfig="editorConfig"
          v-model="valueContent"
          style="height: 400px; overflow-y: hidden;"
          @onCreated="handleCreated"
          @onChange="handleChange"
          @onDestroyed="handleDestroyed"
          @onFocus="handleFocus"
          @onBlur="handleBlur"
          @customAlert="customAlert"
          @customPaste="customPaste"
      />
    </div>
  </div>
</template>
